If you want a cool armour concept, I suggest reading Dale Brown's Tin Man. If I recall correctly (it's been a while since I read it) he used some sort of piezzo-electric material that's normally soft and flexible, but when there's an impact (like a bullet, or if you jump from a running car) the material hardens and protects you. It comes with a battery pack, jet's in the boots (to jump large distances) and a helmet with eyeball tracked diagnostics, NVGs and so on. I think something like that would make a very nice shadowrun armour.
